Building material.



cvs. BIRD.

BUILDING MATERIAL.

APPLICATION FILED AUG.2I|19II.

Patented May 2, 1916.

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' To all whom it may concern;

CHARLES S. BIRD, 0F WALPOLIE, MASSACHUSETTS.

' BUILDING MATERL.

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Be it known that T, CHARLES S. BIRD, of Walpole, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Building Material, of which the following is a specification, reference being had to the accompanying drawings, forming part thereof.

This invention has reference to improvements in building material and particularly' to roofing paper.

The object of the invention is so to construct building materials and particularly roofing paper having a layer of asphaltic or similar waterproof material provided with a coating of comparatively fine mineral particles that said surface may, in appearance, simulate a series of slates and, in addition,

to more securely fiX certain areas of said,

particles in place.

The invention consists in a sheet or strip of building material having a waterproof layer provided with a coating of particles adapted to mechanically protect said layer and having an overlying pattern of material in which said particles or certain groups or areas of said particles are em-.

bedded.

The invention also consists in the improved building material hereinafter describedand claimed.

Figure 1, represents a plan view of the improved building material. Fig. 2, represents an enlarged sectionalview taken on line 2-2, Fig. -1. Fig. 3, represents a similar view illustrating, approximately,- the applicationof the additional surface coating of binding material.

Similar numerals of reference designate corresponding parts throughout.

Tn carrying this invention into practice it has been my main object toproduce building material and particularly buildingpaper having a more ornamental appearance than that heretofore constructed and at the same time to improve the Wearing, quality of the surface coating or ofparts thereof. Building material of this nature has heretofore' been constructed by taking a. sheet or strip of paper and applying to one surface thereof a layer of viscous material preferably of an asphaltic or bituminous nature, portions of which were absorbed by the paper while the remainder formed a-substantially water proof coating covering the paper. the s r ac f t s ating Was st ll Su i Specification of Letters Patent.

While Patented May 2, f ffi.

Application filed August 21, 1911. Serial No. 64:5,254L.

and have adhered to suchcoating in sufiicient quantities to form a surface coating to mechanically-protect the surface of the wa" 'terproof material from the action of the Weather. This unbroken surface ofthe protective'coating, with the straight edges of the strip has been monotonous in appearance and has militated against the use of the material on buildings of the higher class suchas dwellings. Various attempts have been made to produce an ornamental efiect with such mate-rial without much success as such attempts have resulted in reducing the life of the material by removing some portions thereof, leaving raw edges.

Tn constructing my improved building material I take a sheet or strip 5 of paper or other suitable material adapted to bev used as a base or backing and to such base ll apply water proofing or water resisting material in a semifluid or plastic condition to form the layer 6 which adheres to the base 5, and preferably, is partially absorbed by such base.

The material of said layer 6 is preferably of such nature that its surface remains comparatively soft for a period after its application-sufficient to permit the particles 7, 7 now applied thereto, to adhere to such surface while the greater portions of such particles 7, 7 extend outward from said layer 6 and mechanically protect said surface from the weather. The material thus constructed has the appearance of a sanded surface of. substantially the color of the particles 7, 7 which of.

course may be artificially colored prior to their application to the layer 6. I now take fluid or semifiuid material substantially of the nature of the material of the layer 6 and of a color contrasting with the general color effect of the combined particles 7 7 and apply such material in areas, lines or ticles, groups or areas of said particles. It will thus be seen that-the layer" 6 is; protected throughout the coatingof par;

color of such material 8, 8 forms. onthe outer surface of the strip by covering certain ofsaid par- I 111) ticles 7, 7 while the appearance of the material is greatly improved, and such of said particles 7, 7 as are embedded, in and covered by the overlying material 8, 8 are more secure than heretofore.

WVhile I prefer to make use of asphaltic material for layer 6 and for the overlay 8, 8 I do not limit myself to the use of such material. The particles 7, 7 may be grains of sand, soapstone or any other natural or artificial particles adapted for the purpose herein described.

While I have herein attempted to show my improved building material by drawings it is evident that such showing of material can be only approximate and I do not wish to limit myself to the exact showing in said drawings.

I prefer to apply the material forming the overlay pattern 8, 8 in such a manner of such consistency and condition that it will be readily received between the particles 7, 7 and, to some extent, will unite with material of the layer 6.

Having thus described my invention, I claim as new and desire to secure by Letters Patent.

1. Building material of the nature described comprising asheet having a continuous coating of comparatively fine particles and an overlay pattern of asphaltic material covering areas of said particles.

2. Building material of the nature described comprising a base having a protective coating of substantially Water-proof material, and an overlay pattern of substantially similar material dividing said protective coating into areas, lines or stripes, said protective coating in said being areas, lines or stripes having fine particles adhering thereto.

3. Building material of the nature described comprising a base having a coating of water-proof material, an overlay pattern of substantially similar material to vary the thickness of said coating, and a substantially continuous layer of fine particles extending practically throughout the surface plane of said waterproof material and embedded to some extent therein.

4. Building material of the nature described comprising a base having a layer of Waterproof material, an overlay pattern of similar material, and a coating of fine particles secured by adhesion to said layer, areas of said particles being embedded in and covered by saidoverlay, substantially as described.

5. Building material of the nature described comprising a base having an asphaltic layer furnished with a coating of fine mineral particles, and an overlay pattern of comparatively thick plastic material in which certain areas of said particles are embedded and covered, substantially as described.

6. Prepared roofing comprising a sheet of fibrous material impregnatedand coated with a waterproof material, said coating varied in thickness in various fields, a coating of granular grit partially embedded in said coating in the fields of least thickness, and a similar coating completely embedded in the fields of greater thickness.

CHARLES S. BIRD.

Witnesses:

H. H. MILLER, HENRY J. MILLER. 

